Summary

Adobe has released security updates for Adobe Flash Player. These updates address critical vulnerabilities that could potentially allow an attacker to take control of the affected system.

Affected Versions

Product

Affected Versions

Platform

Adobe Flash Player Desktop Runtime

18.0.0.232 and earlier

Windows and Macintosh

Adobe Flash Player Extended Support Release

18.0.0.232 and earlier

Windows and Macintosh

Adobe Flash Player for Google Chrome

18.0.0.233 and earlier

Windows, Macintosh, Linux and ChromeOS

Adobe Flash Player for Microsoft Edge and Internet Explorer 11

18.0.0.232 and earlier

Windows 10

Adobe Flash Player for Internet Explorer 10 and 11

18.0.0.232 and earlier

Windows 8.0 and 8.1

Adobe Flash Player for Linux

11.2.202.508 and earlier

Linux

AIR Desktop Runtime

18.0.0.199 and earlier

Windows and Macintosh

AIR SDK

18.0.0.199 and earlier

Windows, Macintosh, Android and iOS

AIR SDK & Compiler

18.0.0.180 and earlier

Windows, Macintosh, Android and iOS

AIR for Android

18.0.0.143 and earlier

Android

To verify the version of Adobe Flash Player installed on your system, access the About Flash Player page, or right-click on content running in Flash Player and select "About Adobe (or Macromedia) Flash Player" from the menu. If you use multiple browsers, perform the check for each browser you have installed on your system.

To verify the version of Adobe AIR installed on your system, follow the instructions in the Adobe AIR TechNote.

Solution

Adobe categorizes these updates with the following priority ratings and recommends users update their installation to the newest version:

Adobe recommends users of the Adobe Flash Player Desktop Runtime for Windows and Macintosh update to Adobe Flash Player 19.0.0.185 by visiting the Adobe Flash Player Download Center or via the update mechanism within the product when prompted [1].

Adobe Flash Player installed with Google Chrome will be automatically updated to the latest Google Chrome version, which will include Adobe Flash Player 19.0.0.185 on Windows, Macintosh, Linux and Chrome OS.

Adobe Flash Player installed with Microsoft Edge for Windows 10 will be automatically updated to the latest version, which will include Adobe Flash Player 19.0.0.185.

Adobe Flash Player installed with Internet Explorer 10 and 11 for Windows 8.0 and 8.1 will be automatically updated to the latest version, which will include Adobe Flash Player 19.0.0.185.

[1] Users of Flash Player 11.2.x or later for Windows, or Flash Player 11.3.x or later for Macintosh, who have selected the option to 'Allow Adobe to install updates' will receive the update automatically. Users who do not have the 'Allow Adobe to install updates' option enabled can install the update via the update mechanism within the product when prompted.

Vulnerability Details

These updates resolve a type confusion vulnerability that could lead to code execution (CVE-2015-5573).

These updates resolve use-after-free vulnerabilities that could lead to code execution (CVE-2015-5570, CVE-2015-5574, CVE-2015-5581, CVE-2015-5584, CVE-2015-6682).

These updates resolve buffer overflow vulnerabilities that could lead to code execution (CVE-2015-6676, CVE-2015-6678).

These updates include additional validation checks to ensure that Flash Player rejects malicious content from vulnerable JSONP callback APIs (CVE-2015-5571).

These updates resolve a memory leak vulnerability (CVE-2015-5576).

These updates include further hardening to a mitigation to defend against vector length corruptions (CVE-2015-5568).

These updates resolve stack corruption vulnerabilities that could lead to code execution (CVE-2015-5567, CVE-2015-5579).

These updates resolve a stack overflow vulnerability that could lead to code execution (CVE-2015-5587).

These updates resolve a security bypass vulnerability that could lead to information disclosure (CVE-2015-5572).

These updates resolve a vulnerability that could be exploited to bypass the same-origin-policy and lead to information disclosure (CVE-2015-6679).

Acknowledgments

Adobe would like to thank Wen Guanxing from Venustech ADLAB, working with the Chromium Vulnerability Rewards Program, for reporting several vulnerabilities in the Flash Player 19 beta. Adobe would also like to thank the following individuals and organizations for reporting the relevant issues and for working with Adobe to help protect our customers: